A systematic review examined whether elderberry can prevent or treat viral respiratory infections, including the common cold and flu. Researchers screened nearly 1,200 studies and analyzed five randomized trials to assess both benefits and safety concerns.

The findings suggest elderberry may not prevent colds from developing, but it might slightly reduce how long a cold lasts and how severe symptoms become—though the evidence remains uncertain. For influenza, elderberry showed potential in reducing duration, and one study found an elderberry product had fewer complications compared to the antiviral oseltamivir.

Importantly, the review found no evidence that elderberry overstimulates the immune system or triggers a dangerous "cytokine storm." While elderberry did affect some inflammatory markers in lab tests, this effect appeared to weaken over time. Overall, elderberry appears safe for treating respiratory illness, but more recent studies are needed to draw definitive conclusions.

Effective for cold

Most Useful Review

2 people found this helpful

I confirm the result; I wrote it out for a colleague who catches a common cold once or sometimes twice a month, suffering from throat issues, snot, sinusitis, and requiring antibiotics. Initially, I considered a multivitamin, but as she is allergic to iodine, I opted for elderberry with high content of elderberry, zinc, and vitamin C. Additionally, she was prescribed omega and probiotics. The results lasted over a month. When I felt a common cold coming on, I took two capsules nightly, and by morning, I felt fine. Her sister also administered it to her children, and they were healthy by morning. I’d recommend it wholeheartedly and wish to order more, but we’re waiting for a discount.

Updated: Apr 2026

Allergies details

3 people found this helpful

They worked well for allergies. I had nasal drippage and coughing, and this eliminated it all. However, my fingernails and toenails became brittle and started chipping. After realising this was the only new addition to my vitamin intake, I gave them to my grandmother, who loves them. Since I stopped using this product, my nails have become stronger, and I've experienced significantly less drippage.

Updated: Apr 2025

Flu details

SCIENTIFIC SCORE

Moderately Effective

Based on 2 Researches

Elderberry shows promise for flu symptoms

Hawkins J, Baker C, Cherry L, Dunne E. Black elderberry (Sambucus nigra) supplementation effectively treats upper respiratory symptoms: A meta-analysis of randomized, controlled clinical trials. Complement Ther Med. 2019;42:361. doi:10.1016/j.ctim.2018.12.004

We delved into the effectiveness of black elderberry (Sambucus nigra) as a treatment for upper respiratory symptoms. This meta-analysis included 180 participants and aimed to provide insight into its benefits, particularly in relation to vaccination status and specific health conditions.

Our findings showed that elderberry supplementation significantly reduced symptoms associated with colds and flu. This suggests that elderberry could serve as a safer alternative to antibiotics and other prescription medications for managing these common viral infections.

7.5

Boosts immunity effectively

Most Useful Review

86 people found this helpful

I've been taking elderberry supplements during cold, flu, and allergy seasons to enhance my immunity and mitigate symptoms. I take one daily in flu season and rarely fall ill. Elderberry helps with runny noses, headaches, and sore throats caused by post-nasal drip. I was thrilled to find Sports Research offers elderberry and zinc supplements. They're organic, tasteless, and without side effects. I plan to take them daily until the coronavirus is no longer an issue.

Updated: Mar 2026

Data last updated: April 22, 2026